The Effect of Dietary Patterns on Mental Distress in Males and Females: Results from a Large Cross-Sectional Study Among an International Sample

Abstract

Objectives The purpose of this study was to assess dietary factors that associate with mental health in males and females. Methods A validated Food-Mood (FMQ) survey was distributed anonymously using several social media platforms targeting adults ages 18 years and above. Data was partitioned based on gender. Classification of young versus mature adults was based on level of brain maturity as evidenced in the literature. A Pearson's correlation analysis and Principal Component Analysis (PCA) were performed on the categorized data using (SPSS) version 25.0. Results A total of 2637 individuals (1789 females and 848 males) completed the survey. Respondents were from North and Central Americas, Europe, Asia, North Africa and the Middle East. Correlational studies identified common and differential food groups that associate with mental distress in men and women. PCA results identified three different patterns for both males and females, which also confirmed common and differential dietary factors that associate with mental health. The first pattern suggests that mental distress in young males (18–29 years) associates with fast food and high glycemic index (HGI) food. For females, high consumption of dairy, fast food, and caffeine associates with mental distress. Both patterns reflect unbalanced diets. The second pattern suggests that absence of mental distress in mature males and females (30 years or older) associates with a spectrum of nutrient-dense food; however different factor loadings propose that food groups may have a different effect on mental distress among genders. The third pattern indicates that mental wellbeing among mature males and females with a moderately healthy diet associates with region of residency in both mature genders, and with higher education among mature females. These facts imply that environmental factors that may impact the brain counteract the flaws of the diet. Conclusions A nutrient dense diet may support a positive mood among males and females. However, customization of diet may optimize mood in both genders. Additionally, continent of residence may affect equally mental distress in males and females. However, mature females with a higher educational level may be able to counteract some of the dietary triggers of mental distress. Funding Sources The authors received no specific funding for this work.